The inner four planets of the Gliese 581 system orbit the host star, a red dwarf 20 light-years from Earth, in this rendering from a National Science Foundation artist. The planet in the foreground has a 37-day orbit and, like Earth, is far enough from the star for liquid water to exist.
Lynette Cook/via NASA
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The Modern-Day Renaissance Man In Queen's Brian May

The moon appears red during a lunar eclipse in the Qatari capital of Doha, 28 August 2007. It's going to happen again tonight, and be visible across North America.
Karim Jaafar/AFP/Getty Images
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Voyager 1 Spacecraft Heads For The Outer Limits

A picture from NASA's Hubble Space Telescope of the dwarf planet Pluto. Astronomer Michael Brown explains his role in demoting the planet in his new book, How I Killed Pluto And Why It Had It Coming.
Anonymous/NASA
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